Abstract: The step being performed in a state where a wheel body is fixed to be prevented from rotating around a rotation axis while a cutting edge of a cutting tool is in contact with the three-dimensional shape surface of the design surface in the wheel body, the cutting tool being three-dimensionally and continuously moved relatively along the three-dimensional shape surface while being changed in direction with respect to the three-dimensional shape surface to allow a rake face of the cutting tool to face a tool travel direction to perform three-dimensional continuous cutting processing that allows a specular glossy surface to be automatically formed in the three-dimensional shape surface, the specular glossy surface being finished into a processed surface having a high metallic gloss property by exposing the base metal.

Abstract: A method for manufacturing a vehicle wheel of the present invention includes a step of performing an edge treatment including deburring of a spoke edge generated by lathe processing. For the edge treatment, a cutting tool as hale type tool for non-rotational processing is used, and the cutting tool is provided with a processing blade having a recessed blade edge having an R shape or polygonal C shape protruding from an outer peripheral surface on a side of a tip end of the rod-shaped cutting tool connected to a rod-shaped shank portion. A processing machine capable of CNC of four or more axes is used. With the cutting tool standing upright against a disc surface, the blade edge of the processing blade is applied to the spoke edge, and the cutting tool is continuously moved relative to the spoke edge along a ridgeline of the spoke edge for scraping.

Abstract: A method for polishing a vehicle wheel, the wheel includes a plurality of holes and a cylindrical rim. A polishing media storage tank holding abrasive media is vibrated to cause the medium to flow in an upwardly or downwardly vortex. The vehicle wheel is dipped into the medium such that the rim portion is disposed between the upward or downward flow of the medium, to polish the wheel.

Abstract: A method for polishing a vehicle wheel having a three-dimensional shape, the vehicle wheel including a disc-shaped disc portion in which a plurality of window holes are provided and a cylindrical rim portion that is located around the disc portion, the method comprising: oscillating a bottomed cylindrical polishing medium storage tank to vibrate the polishing medium storage tank, a polishing medium being stored in the polishing medium storage tank; causing the polishing medium in the polishing medium storage tank to flow in a vortex manner; generating a convection in which the polishing medium flows downward in a center portion of the vortex while flowing upward in an outer circumferential portion or a convection in which the polishing medium flows upward in the center portion of the vortex while flowing downward in the outer circumferential portion; connecting a support shaft from a back side of the vehicle wheel; transversely situating the vehicle wheel with a rear surface of the disc portion oriented up

Abstract: A method for producing a light alloy vehicle wheel in which a casting material is forged to produce a rim-integrated vehicle wheel, the method comprising: a casting step of preparing a flat, square billet by continuous casting or semi-continuous casting using a mold whose mold outlet port is formed into a substantially rectangular shape; a cutting step of cutting the flat, square billet at a right angle to a casting direction to flatly form a rectangular casting material in the casting direction; a primary forging step of pressing down the rectangular casting material from a flat surface side of the rectangular casting material to forge the rectangular casting material into a disc shape; and a secondary forging step of forging the disc-shaped forging product into a rough wheel shape having a disc portion and a rim portion.

Abstract: A process of making wheels in which a pair of rams press an initial mass of material for shaping a central disc part. A portion of the material is extruded out from between the interface of the rams. A roller unit having several rollers simultaneously forms rim parts by pressing the extruded material into desired shapes as it passes beyond the periphery of the rams.

Abstract: A rotary forging apparatus includes a first rotary ram (3a), a cylindrical second rotary ram (3b), a third rotary ram (3c) and a shaping roller device. The first ram (3a) and the cylindrical second ram (3b) face each other and rotate around the same axis. The third ram (3c) rotates around a slanting axis in the cylindrical second ram (3b). The third ram (3c) presses a workpiece against the first ram (3a) and makes a disc part of a product. The shaping roller, the second ram (3b) and a side of the first ram make the rim part. The outer surface of the second ram (3b) can keep tight contact with the workpiece during the forging because of the rotational symmetry of the second ram (3b). The overall contact stabilizes the position of the workpiece and reduces the size error of the product.

Abstract: A method of forming wheels such as automobile wheels that consist of a disc part and a peripheral rim part. The wheel's disc part is formed by forging. Then the rim part is shaped by rolling. An initial material is formed beforehand so as to combine a central disc part and a peripheral annular part. One ram has a pressing surface for shaping an outer side of the disc part and a peripheral surface for shaping an outer rim. The other ram has a pressing surface for shaping an inner side of the disc part and a peripheral surface for shaping an inner rim. The rams rotate on their axes synchronously in the same direction and press the central disc part for shaping the disc part of the wheel. At the same time or afterward a shaping roller forms a rim part by pressing the peripheral part from the side.

Abstract: A tolerance ring is provided with radial projections to achieve unidirectional or bidirectional axial retention, or angular retention relative to at least one abutting cylindrical surface. Spaced tabs, dimples or a continuous flange formed at one or both axial ends of the ring provide the axial retention function by engaging with one or two shoulders on the abutting cylindrical surfaces, and a radially projecting tab at a lateral end of the split ring provide the angular retention function by engaging in a groove in the abutting cylindrical surface. The axial and angular retention projections can project radially inwardly or outwardly depending on the particular application, and the axial and angular retention projections can be used individually or in combination as desired.